Software Development Forum

Hi, I'm doing a study planner in java. I'm doing a simple login system. For every user who registers a text file is created holding all of the information inputted during registration. This is the code of a method which the program uses to login the user: public void loginUser(){ …

Why does first two eg give true when a check done on them using if(x==y) but 3rd and 4th case give false? eg1: `String x = "Hello", y="Hello" ` eg2: `String x = "Hello";` `String y= "Hello";` eg3: `String x="Hello";` `String y = new String("Hello");` eg4: `String x = new …

Hi every one!! I need help to match user data from database inorder to log in to admin panel. Here is what I am trying. it works ok but it is giving dialog box containing text "Sorry! You have no access to Database" here is the code. Please help String …

Hi, I have a file containing multiple-headed data (input file 1), and also a second file containing elements for searching the first file. input file 1: UROPA sseD 1.2.3.3.3 crimson ddsU 2.1.4.1.2 green SAMEL aadH 7.4.1.1.1 blue uuoG 10.1.2.3.4 white MOONA gmaL 3.4.1.6.7 red oolJ 9.1.1.4.1 yellow input file 2: …

Why can't we post anymore comments on the "Read This Before Posting" sticky won't go away thread created by Reverend Jim?

i have a private Node class with a getValue() method that returns the Node's value which is of generic type. In another class i've tried doing this: T tempItem = null; ----also generic tempItem = currentNode.getValue(); I get a complier error unless I cast it like this: tempItem = (T) …

I've been trying to get this to build for hours, I have no idea what's wrong. Any help is appreciated, thank you. Here's the code: main.cpp #include "SDL/SDL.h" #include "Core.h" #include "GameStates.h" #include "globals.h" int main(int argc, char** args) { if(core.Initilization(640, 480, 32, SDL_SWSURFACE) == -1) { SDL_Quit(); } while(core.desiredstate …

Hi guys I'm Indrajeet Roy, and I have a problem with a piece of code I am trying write in VB.net. I am using Visual Studio 2010 as my IDE. The basic idea behind the form and the coding I am trying to do is to create a username, password …

I'm trying to open a txt file in python, but I'm having trouble. It seems to be working, but I cannot get the text anywhere. Here is the code, does anyone know how I can get the text from the hello.txt file? f = open("c:/users/verzo/desktop/hello.txt") print(f)

Hi, I am trying to generate a sales report for a given date in the crystal report. In my table i have a billdate and other information. Now what i am trying to do is to get all the sales into my report when i specify a date. I have …

why do i get this syntax error at the line shown below [CODE]package org.temp2.cod1; import java.security.*; import javax.crypto.*; import javax.crypto.spec.*; import java.io.*; public class Code1 { byte[] plaintext = new byte[32]; // <<<<<<<<<<<<<<<<<<<<<<<<<< syntax error for (int i = 0; i < 32; i++) { plaintext[i] = (byte) (i % …

Private Sub Product_Details1(ByVal pid1 As String) Dim n As Integer n = 0 DataGridView1.Rows.Clear() myConnection = New SqlConnection(connectionstring) myConnection.Open() Try sqlcmd = New SqlCommand("SELECT P_Id,P_Selling_Price FROM Product_Details WHERE P_Id='" & ComboBox1.SelectedText & "' ", myConnection) Dim dr As SqlDataReader = sqlcmd.ExecuteReader If dr.HasRows Then While dr.Read() DataGridView1.Rows.Add() DataGridView1.Rows(n).Cells(0).Value = dr("P_Id").ToString …

**this is my displacement.h** #ifndef DISPLACEMENT_H #define DISPLACEMENT_H class displacement { public: displacement(double, double, double); double getvalue(); private: double s,t,a,v ; } #endif **this is my displacement.cpp** #include "displacement.h" ;using namespace std; displacement::displacement(double t1,double a1,double v1) { t=t1; a=a1; v=v1; s = v * t -(0.5) * a * t …

im very new to c++ and was just wondering if its possible to make a simple program where you type the name of the file and when you press enter it downloads that file from the internet to a certain place on your computer. where would the files be stored? …

Hi All, I am new to C++ on linux enviroment and am trying to use the png++ library for a project. The problem i am facing is that that a simple program i write using png++ incudes does not work and shows me the following errors > AProg.o: In function …

Please help me. I want to make my software a trial version for 30 days. Help me with code to use , and the steps. •̸ŤђαϞĸs

how to convert this code to C#. Protected Class Calendar Public Sub New(ByRef Picker As NullableDateTimePicker) End Sub End Class

Hello. I can search for items in first listview column using FindItemWithText. I wonder is it possible to search in other listview columns and highlight found text, not all item line ? :?: Searched on google all day long but no luck... :sad: My Listview contains multiple items and each …

I've been experimenting with having a standard API for a balloon tip on my Winform. No problems with standard textboxes, but I was wondering if it is at all possible to create one for a rich textbox? I would like a balloon tip to display when the Capslock is on.

I am trying to load Visual Basic 2010 express onto my computer and keep running into a problem with the install. it hang up on the .net framework 4 download and then quits. i've tried running "as admin" and it still didn't work. i am using vista on one laptop …

Hi guys, How to unzip folder in c# programatically. Thanks in advance.

Whenever I click on form's red cross close button I want to close form, but I need to click it twice to close the form.I need to click it only one to close it. I don.t know what the cause,please help thank you robin

int i=512; char *c=(char *)&i; c[0]=2; printf("%d",i); o/p is 514

#include<conio.h> #include<stdio.h> void main() { int iRows; clrscr(); printf("Enter a number :"); scanf("%d",&iRows); if(iRows>0) { for(int iResult=0,iCount=0,iRows; iResult<=iRows; iResult++) for(iResult=1,iCount=0,iRows; iCount<=iResult; iCount++) printf("*"); printf("\n"); }//for getch(); }//main please help me to correct my source code: i should make a program like this: * ** *** **** ***** . . . …

I could reallly use some help. I am a complete newbie in python. What I would like to do is import a csv file (originally an excel file). Have the user pick a beginning month and an ending month and add the columns of the months between. For example I …

what is wrapper calss .where can we use wrapper class in java.give me one example?

This is working code. You will of course have to replace the directories used in this code with your own that will be unique to your particular situation. You also must have ArcGIS, and the newest version is 10 which will only work with python 2.6. There is plenty of …

guys . please help me how to connect a database in c#. thanks .

The o/p is 10. But shouldn't it be 9? Is it got anything to do with Postfix or variable scoping has a role to play?

Hello, i have issue that i cant solve for some time since i dont fully understand regex. How can i get selected data from table to array? Example class="fb s10" title="Get This Info"> class="fb s10" title="Get That Info"> How can i extract Get This Info Get That Info from selected …

I need help, please how can I export my database from access to mysql. I do not want to start creating the tables one after the other ĩ̷̊ñ mysql. Thanks

how i can refresh the content of data grid view after add and delete row ??

Hi all, Am new to C# and i have a form which registers users,But i want to create methods that which check if the TextBox conatins Letters (ie for coloumns that shouldnt take letters) and check for special characters and number for coloumns that should only have text. I have …

I am looking to create a binary tree and then print it out. I am getting some strange errors I cant fix. #include <stdio.h> #include <string.h> struct animalTree { char data[100]; struct animalTree *left; struct animalTree *right; }; typedef struct animalTree aTree; void fillTree(FILE*, struct animalTree*); int readNext(char*, FILE*, int*); …

Hello everyone, I am new at Java(android)-before I have little information about Java lang- and in particular socket programming -before I do not know nothing about socket client server programming-, previously I wanted to write simple chat program by using Threads and now I pass this step, two android emulators …

Hi, I'm new to WCF technology and I have to make 2 service providers, that can exchange messages between each othen. So I made two seperate WCF services, and a client application for each service. But my how to implement implement communication between the two wcf services, so that when …

Hello everyone, When using the following source codes to play a local .wav file, I always find .wav files can not played. Does anyone know what is the trouble? [Code] import java.io.File; import java.io.IOException; import javax.sound.sampled.AudioFormat; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.DataLine; import javax.sound.sampled.FloatControl; import javax.sound.sampled.LineUnavailableException; import javax.sound.sampled.SourceDataLine; public class …

Compiles fine. But at runtime it gives ClassCastException. My doubt is that why is it so even though st which is of type Sample1 gets casted to Sample2 and generates exception even though Sample2 IS-A Sample1.

Greetings fellow developers i just wanna ask if this situation is possible.. i have a program that consists this forms - Registration Form - Log in Form - Admin Form The registration form is as usual a windows app, and also the admin form except log in form. When the …

I'm working on a cleanup script for tv shows that I download. Right now I'm just looking for a file greater than 50mb, but there should be a better way. [CODE] import os import shutil dir = "C:\Users\Bobe\Downloads\TV\\" for folder in os.listdir(dir): if os.path.isdir(os.path.join(dir,folder)): for file in os.listdir(dir + folder): …

Hello All! To check for return values from a function and setting error flags, i am currently using the following approach: bool fine = true; fine &= func1(); fine &= func2(); .. and so on. if (!fine) { // error } Could anyone please let me know if there is …

I used the upsize wizard in Access 2010 to split my database with the table being on the SQL server. I entered this in the autoexec (was macro, I converted it) Function autoexec() oConn.Open "Driver={SQL Server};Server=JCPLMSQL01;Database=TestingConnection;Trusted_Connection=yes;" DoCmd.OpenForm "Form1", acNormal, "", "", , acNormal autoexec_Exit: Exit Function End Function I don't …

Hi! I want to execute a method without pressing the enter key, what I want to do is get the press key an save it in an array while the user is typing, but I dont know how to execute an event without pressing the enter key here is my …

numbers = [] line = int(raw_input('Enter number: ')) while line != '': numbers.append(line) line = raw_input('Enter number: ') print "Size:" + " " + str(len(numbers)) Hey guys, once again I need some help with a challege. http://pokit.org/get/img/c00a1897d52de5b36329564861fadb1b.jpg For your homework, you are given a set of integer data readings, and …

I want to make a program that cross checks strings. Here is an example : **Enter line: AAGGAA This sequence can make a hairpin** **Enter line: UGAG This sequence cannot make a hairpin** **Enter line: GUGCCACGGCACCGUG This sequence can make a hairpin** **Enter line: GUACCACGGCACCGUG This sequence cannot make a …

Here is slow brute force way to find the largest palindromic product of three digit integers. You could do loop and break out of it if you go under the smaller number (the second one) of best solution found so far to be more efficient etc.

I have an odd problem with a Java-based Internet program that I would like to use on a regular basis on my Windows XP computer. I have not done Java programming, so I would be interested to know if anyone has ideas about what might be happening. The program runs …

Hi guys, With Python, I am using genfromtxt (from numpy) to read in a text file into an array: `y = np.genfromtxt("1400list.txt", dtype=[('mystring','S20'),('myfloat','float')])` Which works okay, except it doesn't seem to read my 2 columns into a 2D array. I am getting: [('string001', 123.0),('string002', 456.0),('string002', 789.0)] But I think would …

Hello forum, I believe that i have the design problem that i need to discuss about. Intersectable is the super-class; Triangle and Sphere are the sub-classes of the Intersectable i believe that you already realized class inheritance structure. I have the following pure virtual functions declared inside the INTERSECTABLE virtual …

I'm trying to read from a text file. Pretty simple, right? I guess not. It gives me this error message: Debug Assertion Failed! Program: F:\Debug\lab1431.exe File: fscanf.c Expression: stream != NULL For information on how your program can cause assertion failure, see the Visual C++ documentation on asserts. [code] #include …